diff --git a/fastcrud/crud/fast_crud.py b/fastcrud/crud/fast_crud.py
index 49a57f9..4c46291 100644
--- a/fastcrud/crud/fast_crud.py
+++ b/fastcrud/crud/fast_crud.py
@@ -1,5 +1,6 @@
 from typing import Any, Dict, Generic, Union, Optional, Callable
 from datetime import datetime, timezone
+import warnings
 
 from pydantic import BaseModel, ValidationError
 from sqlalchemy import (
@@ -2145,6 +2146,7 @@ async def update(
 
         Raises:
             MultipleResultsFound: If `allow_multiple` is `False` and more than one record matches the filters.
+            NoResultFound: If no record matches the filters. (on version 0.15.3)
             ValueError: If extra fields not present in the model are provided in the update data.
             ValueError: If `return_as_model` is `True` but `schema_to_select` is not provided.
 
@@ -2199,7 +2201,15 @@ async def update(
             )
             ```
         """
-        if not allow_multiple and (total_count := await self.count(db, **kwargs)) > 1:
+        total_count = await self.count(db, **kwargs)
+        if total_count == 0:
+            warnings.warn(
+                "Passing non-existing records to `update` will raise NoResultFound on version 0.15.3.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            # raise NoResultFound("No record found to update.")
+        if not allow_multiple and total_count > 1:
             raise MultipleResultsFound(
                 f"Expected exactly one record to update, found {total_count}."
             )
diff --git a/tests/sqlalchemy/crud/test_get_multi_by_cursor.py b/tests/sqlalchemy/crud/test_get_multi_by_cursor.py
index adec46f..ffa1fb1 100644
--- a/tests/sqlalchemy/crud/test_get_multi_by_cursor.py
+++ b/tests/sqlalchemy/crud/test_get_multi_by_cursor.py
@@ -124,7 +124,7 @@ async def test_get_multi_by_cursor_pagination_integrity(async_session, test_data
         db=async_session,
         object={"name": "Updated Name"},
         allow_multiple=True,
-        name="SpecificName",
+        name=test_data[0]["name"],
     )
 
     second_batch = await crud.get_multi_by_cursor(
diff --git a/tests/sqlalchemy/crud/test_update.py b/tests/sqlalchemy/crud/test_update.py
index b917f44..9680320 100644
--- a/tests/sqlalchemy/crud/test_update.py
+++ b/tests/sqlalchemy/crud/test_update.py
@@ -51,6 +51,18 @@ async def test_update_non_existent_record(async_session, test_data):
     crud = FastCRUD(ModelTest)
     non_existent_id = 99999
     updated_data = {"name": "New Name"}
+    """
+    In version 0.15.3, the `update` method will raise a `NoResultFound` exception:
+
+    ```
+    with pytest.raises(NoResultFound) as exc_info:
+        await crud.update(db=async_session, object=updated_data, id=non_existent_id)
+
+    assert "No record found to update" in str(exc_info.value)
+    ```
+
+    For 0.15.2, the test will check if the record is not updated.
+    """
     await crud.update(db=async_session, object=updated_data, id=non_existent_id)
 
     record = await async_session.execute(
@@ -69,6 +81,18 @@ async def test_update_invalid_filters(async_session, test_data):
     updated_data = {"name": "New Name"}
 
     non_matching_filter = {"name": "NonExistingName"}
+    """
+    In version 0.15.3, the `update` method will raise a `NoResultFound` exception:
+
+    ```
+    with pytest.raises(NoResultFound) as exc_info:
+        await crud.update(db=async_session, object=updated_data, **non_matching_filter)
+
+    assert "No record found to update" in str(exc_info.value)
+    ```
+
+    For 0.15.2, the test will check if the record is not updated.
+    """
     await crud.update(db=async_session, object=updated_data, **non_matching_filter)
 
     for item in test_data:
diff --git a/tests/sqlmodel/crud/test_get_multi_by_cursor.py b/tests/sqlmodel/crud/test_get_multi_by_cursor.py
index 764c285..7301c14 100644
--- a/tests/sqlmodel/crud/test_get_multi_by_cursor.py
+++ b/tests/sqlmodel/crud/test_get_multi_by_cursor.py
@@ -124,7 +124,7 @@ async def test_get_multi_by_cursor_pagination_integrity(async_session, test_data
         db=async_session,
         object={"name": "Updated Name"},
         allow_multiple=True,
-        name="SpecificName",
+        name=test_data[0]["name"],
     )
 
     second_batch = await crud.get_multi_by_cursor(
diff --git a/tests/sqlmodel/crud/test_update.py b/tests/sqlmodel/crud/test_update.py
index 9a9878d..2968674 100644
--- a/tests/sqlmodel/crud/test_update.py
+++ b/tests/sqlmodel/crud/test_update.py
@@ -51,6 +51,18 @@ async def test_update_non_existent_record(async_session, test_data):
     crud = FastCRUD(ModelTest)
     non_existent_id = 99999
     updated_data = {"name": "New Name"}
+    """
+    In version 0.15.3, the `update` method will raise a `NoResultFound` exception:
+
+    ```
+    with pytest.raises(NoResultFound) as exc_info:
+        await crud.update(db=async_session, object=updated_data, id=non_existent_id)
+
+    assert "No record found to update" in str(exc_info.value)
+    ```
+
+    For 0.15.2, the test will check if the record is not updated.
+    """
     await crud.update(db=async_session, object=updated_data, id=non_existent_id)
 
     record = await async_session.execute(
@@ -69,6 +81,18 @@ async def test_update_invalid_filters(async_session, test_data):
     updated_data = {"name": "New Name"}
 
     non_matching_filter = {"name": "NonExistingName"}
+    """
+    In version 0.15.3, the `update` method will raise a `NoResultFound` exception:
+
+    ```
+    with pytest.raises(NoResultFound) as exc_info:
+        await crud.update(db=async_session, object=updated_data, **non_matching_filter)
+
+    assert "No record found to update" in str(exc_info.value)
+    ```
+
+    For 0.15.2, the test will check if the record is not updated.
+    """
     await crud.update(db=async_session, object=updated_data, **non_matching_filter)
 
     for item in test_data: